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. Patented Feb. 18; 1890..

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No. 421,785. Patented Feb. 18

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. P. THIELBN. -STEAM HEATER.

No. 421,785. Patented Feb. 18,1890.

WITNESSES. I/VVE/VTOR:

N. PETERS. Pholo'likhvguphur. Walhingum D: C.

UNITED STATES ATEN FFICE' PAUL THIELEN, OF KANSAS CITY, KANSAS, ASSIGNOROF ONE-HALF TO JAMES J. SHEA, OF SAME PLACE.

STEAM- H EATER.

SPECIFICATION forming part of Letters Patent No. 421,785, dated February18, 1890. Application filed June 8, 1889. Serial No. 313,566- (Nomodel.)

To all whom. it may concern:

Be it known that I, PAUL THIELEN, of Kansas City, WVyandotte county,Kansas, have invented certain new and useful Improvements inSteam-Heaters, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart hereof.

My invention relates to steam-heaters for use in buildings, cars, 6120.;and it consists in a certain novel construction and arrangement ofdevices, fully described hereinafter in connection with the accompanyingdrawings, and specifically pointed out in the claims hereto appended.

In the drawings, Figure l is a vertical central sectional view of asteam-heater embody ing my improvements. Fig. 2 is a horizontalsectional view of the same on the line so a: of

Fig. 1. Fig. 3 is a horizontal sectional view of the base, showing thepartitions which defiect the heat and products of combustion, so as tocause them to pass through the vertical flues. Fig. 4 is a perspectiveView of the improved heater. Fig. 5 is a detached perspective View ofthe fire-pot. Fig. 6 is a similar 7 view of the slide to remove theclinkers from the grate. Fig. 7 is .a similar view of the gratedetached; and Fig. 8 is a detail view of the check-valve located in thefeed-pipe.

In the construction of my improved steamheater I employ aheating-chamber A, which contains the annular fire-pot B, the lower edgesupporting-ring M, which is supported in po-v sition below the fire -potby the stationary legs ZZ, said legs being extended upwardly andoutwardly, as shown by dotted lines in Fig. 1, and bolted firmly to aring R, within which rests the fire-pot. The fire-pot is dishshaped,having inclined or rounded sides which fit snugly in the ring R.

Below the grate are arranged parallel tracks or guide-bars D D, whichare affixed at their ends to the legs Z l, and on said tracks or bars ismounted a slide D, having depending flanges d cl, to engage the tracksor bars. This slide is normally arranged under the opening 70 in thegrate to close the same, and it is provided with a handle a, whichextends through a perforation in the front of the heater, whereby theslide may be moved back and forth on its tracks to clean the clinkersfrom the grate. with a handle h, which extends through a horizontal slotin the front of the heater, whereby the grate maybe moved on itsbearing-ring M to relieve the same of ashes. The grate-bars areconnected near their inner ends by an annular bar 70.

The heating-dome is arranged in the boiler E, which fits in an'outershell or casing F, a small annular space being provided between theiradjacent walls, and the said boiler and easing are bolted at their lowerends to flanges w and w on the base L, which extends thereunder. Theheating-dome is provided with an exit-pipe b, which extends through theboiler and the outer casing and communicates with a vertical chimney 4.,

which communicates at its lower end with the interior of the base Lthrough the'opening 5, and also communicates above the exitpipe I) withthe interior of the outer casing, above the boiler, through the opening25. A damper c is arranged in the chimney above the exit-pipe b. Securedto the said base by means of arms 0 is a combined foot-rest andfeed-pipe K, one end of which is provided with a coupling K, by means ofwhich a suitable supply-pipe (not shown) maybe attached thereto, and theother end of which extends through registering apertures in the outercasing and the side of the boiler and communicates with the interior ofthe latter. Through this feedpipe the water is introduced into theboiler, said pipe being provided just outside the casing with acheckvalve 2), which prevents backpressure of steam or water when theboiler is receiving a supply of the latter.

The boiler is provided with the ordinary vertical flues G G, whichextend through registering perforations in the base and the top Thegrate is' also provided of the boiler and communicate with the interiorof the base and the interior of the outer casing above the boiler. Theinterior of the base is provided with parallel webs or partitions N N,which extend from one side (the side adjacent to the opening 5) nearlyto the opposite side, thereby forming a central compartment O, withwhich the lower end of the chimney communicates, and side compartments0' O, with which the lower ends of the vertical fines G G communicate.Therefore when the damper o isclosed the products of combustion passdowii the chimney to the central compartment of the base and are carriedby the parallel webs or partitions close to the opposite wall of thebase and are then admitted to the side compartments, from whence theypass up through the fines G into the dome of the outer casing and escapethrough the opening 25 to the chimney.

The dome o'- of the outer casing is provided with a series of apertures2 2, which register, respectively, with the vertical fines, whereby acleaning-rod may be inserted into the ilues through said apertures, andthe latter are closed when not thus in use by small slides G',which fitat their edges in grooved flanges on the outer surface of the dome 7'.

The dotted line 12 in Fig. 1 shows the wator-line in the boiler, thesame being indicated to the operator by the ordinary watergage z, and 3indicates a steam-gage, which is arranged at the center of the dome '1'.

Q represents the outlet-pipe for the steam, to which is connected theservice-pipe to convey the steam to different parts of the building orcar to be heated, and (1 indicates a safety-valve having an arm Q,provided with a series of perforations, to which is connected the upperend of a rod 19, which is connected at its lower end to one arm of anangle-lever m, which is pivoted on the casting H in the front of theheater, as seen at p'. This angle-lever has its other arm connected tothe draft-slide n by means of the link m, which is pivoted on the pin a.

The casting H, which is let into the front of the heater, is alsoprovided at its lower end with a door J,throngh which the ash-pan a maybe. introduced and withdrawn, and is provided at its upper end with adoor I,which closes the fuel or feed opening (Z.

From the above description it will be seen that simple, cheap, andreliable means are provided to secure the various parts'of the heater intheir positions, and the arrangement of the parts is such as to effectan economy in fuel by deriving the greatest amount of heat therefrom.

The peculiar construction of the grate and the dish-shaped fire-potabove the same causes the fuel to be concentrated at the center of thegrate, and when the same becomes choked by an accumulation of clinkersthe slide D is operated, by means of its handle i, to remove the latter.

Vertical through-bolts 1O 10 extend from the dome of the outer casing tothe bottom of the base, passing between the walls of the boiler and theouter casing, the perforations 50 (shown in Fig. 3) being provided toreceive the said bolts. The fire-dome is secured in position by means ofa casting s, which is placed between the wall of the boiler and the sideof the fire-dome and secured thereto by means of rivets, bolts, orsimilar devices.

The operation of the improved heater will be readily understood from theforegoing description. To create a direct draft the damper c is opened,thereby allowing the products of combustion to pass directly up thechimney;

but when it is desired to utilize the heat in the said products thedamper is closed, thereby causing them ,to pass downward to the base ofthe heater, and after being deflected to the walls of the latter theypass up the fines i and escape into the chimney through the opening 25.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is

1. In a steam-heater, the combination of the boiler,the fire-chambertherein,the base-chamher under the boiler, the chamber above the boiler,the vertical fines extending through the boiler and communicating withthe base and upper chambers, the chimney also communicating with saidbase and upper chambers, and the pipe 1), extending from the firechamberto the chimney, the latter being provided with the valve above said pipeZ), substantially as described.

2. Inasteam-heater, the combination of the boiler having vertical finesand inelosing the fire-dome, the outer casing surrounding the boiler,the base arranged below the boiler and outer casing and communicatingwith the vertical fines of the former, said base being divided into acentral compartment and side compartments by deflecting webs orpartitions, and the chimney communicating at an intermediate point withthe fire-dome and provided above the same with a damper andcommunicating with the central compartment of the base and with theupper end of the outer casing above theboiler, substantially asspecified.

In testimony whereof I affix my signature in presence of two witnesses.

PAUL THIELEN.

Witnesses:

F. G. FISCHER, A. A. HIenoN.

